Hi, Running doveadm on Alpine Linux will show various underlinking errors: /usr/bin/doveadm: symbol 'acl_user_module': can't resolve symbol in lib '/usr/lib/dovecot/doveadm/lib10_doveadm_acl_plugin.so'. /usr/bin/doveadm: symbol 'acl_identifier_parse': can't resolve symbol in lib '/usr/lib/dovecot/doveadm/lib10_doveadm_acl_plugin.so'. ... (complete list is found here: http://bugs.alpinelinux.org/issues/1274) I understand that those are "harmless" (at least as long as you dont use those plugins), and even if some dynamic linkers are forgiving, the doveadm plugin modules are technically underlinked. The lib10_doveadm_acl_plugin.so uses symbol acl_user_module: $ nm -D /usr/lib/dovecot/doveadm/lib10_doveadm_acl_plugin.so | grep acl_user_module U acl_user_module That symbol is defined in lib01_acl_plugin.so: $ nm -D /usr/lib/dovecot/lib01_acl_plugin.so | grep acl_user_module 000000000020fb80 D acl_user_module Which means that lib10_doveadm_acl_plugin.so should be directly linked to lib01_acl_plugin.so. But it is not: $ readelf -d /usr/lib/dovecot/doveadm/lib10_doveadm_acl_plugin.so | grep NEEDED 0x0000000000000001 (NEEDED) Shared library: [librt.so.0.9.32] 0x0000000000000001 (NEEDED) Shared library: [libc.so.0.9.32] Below is a patch that should solve it. --- diff -r 4d268e810c15 src/plugins/acl/Makefile.am --- a/src/plugins/acl/Makefile.am Mon Oct 08 08:53:54 2012 +0300 +++ b/src/plugins/acl/Makefile.am Wed Oct 10 11:03:49 2012 +0200 @@ -10,7 +10,8 @@ -I$(top_srcdir)/src/doveadm NOPLUGIN_LDFLAGS = -lib10_doveadm_acl_plugin_la_LDFLAGS = -module -avoid-version +lib10_doveadm_acl_plugin_la_LDFLAGS = -module -avoid-version -Wl,-rpath,$(moduledir) +lib10_doveadm_acl_plugin_la_LIBADD = $(module_LTLIBRARIES) lib01_acl_plugin_la_LDFLAGS = -module -avoid-version module_LTLIBRARIES = \ diff -r 4d268e810c15 src/plugins/expire/Makefile.am --- a/src/plugins/expire/Makefile.am Mon Oct 08 08:53:54 2012 +0300 +++ b/src/plugins/expire/Makefile.am Wed Oct 10 11:03:49 2012 +0200 @@ -14,7 +14,8 @@ -I$(top_srcdir)/src/doveadm NOPLUGIN_LDFLAGS = -lib10_doveadm_expire_plugin_la_LDFLAGS = -module -avoid-version +lib10_doveadm_expire_plugin_la_LDFLAGS = -module -avoid-version -Wl,-rpath,$(moduledir) +lib10_doveadm_expire_plugin_la_LIBADD = $(module_LTLIBRARIES) lib20_expire_plugin_la_LDFLAGS = -module -avoid-version module_LTLIBRARIES = \ diff -r 4d268e810c15 src/plugins/fts/Makefile.am --- a/src/plugins/fts/Makefile.am Mon Oct 08 08:53:54 2012 +0300 +++ b/src/plugins/fts/Makefile.am Wed Oct 10 11:03:49 2012 +0200 @@ -11,7 +11,8 @@ -I$(top_srcdir)/src/doveadm NOPLUGIN_LDFLAGS = -lib20_doveadm_fts_plugin_la_LDFLAGS = -module -avoid-version +lib20_doveadm_fts_plugin_la_LDFLAGS = -module -avoid-version -Wl,-rpath,$(moduledir) +lib20_doveadm_fts_plugin_la_LIBADD = $(module_LTLIBRARIES) lib20_fts_plugin_la_LDFLAGS = -module -avoid-version module_LTLIBRARIES = \ diff -r 4d268e810c15 src/plugins/quota/Makefile.am --- a/src/plugins/quota/Makefile.am Mon Oct 08 08:53:54 2012 +0300 +++ b/src/plugins/quota/Makefile.am Wed Oct 10 11:03:49 2012 +0200 @@ -11,7 +11,8 @@ -I$(top_srcdir)/src/doveadm NOPLUGIN_LDFLAGS = -lib10_doveadm_quota_plugin_la_LDFLAGS = -module -avoid-version +lib10_doveadm_quota_plugin_la_LDFLAGS = -module -avoid-version -Wl,-rpath,$(moduledir) +lib10_doveadm_quota_plugin_la_LIBADD = $(module_LTLIBRARIES) lib10_quota_plugin_la_LDFLAGS = -module -avoid-version module_LTLIBRARIES = \ diff -r 4d268e810c15 src/plugins/zlib/Makefile.am --- a/src/plugins/zlib/Makefile.am Mon Oct 08 08:53:54 2012 +0300 +++ b/src/plugins/zlib/Makefile.am Wed Oct 10 11:03:49 2012 +0200 @@ -11,7 +11,8 @@ -I$(top_srcdir)/src/doveadm NOPLUGIN_LDFLAGS = -lib10_doveadm_zlib_plugin_la_LDFLAGS = -module -avoid-version +lib10_doveadm_zlib_plugin_la_LDFLAGS = -module -avoid-version -Wl,-rpath,$(moduledir) +lib10_doveadm_zlib_plugin_la_LIBADD = $(module_LTLIBRARIES) lib20_zlib_plugin_la_LDFLAGS = -module -avoid-version module_LTLIBRARIES = \